- February 30
linked-title occurs in some calendars, unlike the
Gregorian calendar, where Februarycontains only 28 or 29 days.
Swedish Empire(which included Finlandat the time) planned to change from the Julian calendarto the Gregorian calendar beginning in 1700by omitting the leap days for the next 40 years. The plan was successfully followed in 1700. However, under the influence of the Great Northern War, which began later that year, the Swedes were focused too much on the war and could not focus on removing leap days, and so 1704and 1708were still leap years.
To avoid confusion and further mistakes, the Julian calendar was restored when, in
1712, one extra leap daywas added, thus giving that year a 30th of February. That date corresponded to February 29in Julian and March 11in Gregorian counting. The Swedish changeover to the Gregorian calendar was finally accomplished in 1753.
Although many sources state that 30-day months were used in the Soviet Union for part or all of the period 1929–1940, other sources as well as all surviving physical calendars from that period only show the irregular months of the Gregorian calendar, including a 28- or 29-day February, so the
Soviet calendarnever had a February 30.
Early Julian calendar
13th centuryscholar Sacroboscoclaimed that in the Julian calendarFebruary had 30 days in leap years between 45 BCand 8 BC, when Augustus shortened February to give the month of Augustnamed after him the same length as the month of Julynamed after his adoptive uncle Julius Caesar. However, all other historical evidence relating to the Julian calendar during this period refutes Sacrobosco, including dual dates with the Alexandrian calendar. See .
Artificial calendars may also have thirty February dates. For example, in a climate model the statistics may be simplified by having twelve months of thirty days. The
Hadley Centre[http://web.archive.org/web/20051122015007/http://www.metoffice.com/research/hadleycentre/models/GDT/ch23.html General Circulation Model] is an example.
* "The Oxford Companion to the Year". Bonnie Blackburn & Leofranc Holford-Strevens. Oxford University Press 1999. ISBN 0-19-214231-3. Pages 98-99.
* [http://www.naturalistsalmanac.com/0230.html Naturalists Almanac February 30]
* [http://hem.fyristorg.com/hok/lee/calender.htm#30%20days 30 days in February 1712]
* [http://www.algonet.se/~hogman/tiderakning_eng.htm Change of calendars - Sweden]
Wikimedia Foundation. 2010.
Look at other dictionaries:
February 29 — in the Gregorian calendar, which is most widely used in the world today, is a date that occurs only every four years, in years evenly divisible by 4, such as 1996, 2000, 2004, 2008, 2012 or 2016 (with the exception of century years not divisible… … Wikipedia
February 31 — February 31, with regard to the modern Western (revised Gregorian) calendar, is an imaginary date. It is sometimes used for example purposes, to make it clear regardless of context that the information being presented is artificial and not real… … Wikipedia
February 14 — is internationally known as Valentine s Day, named after Saint Valentinus of Terni, in Italy, executed in 270.Events* 842 Charles the Bald and Louis the German swear the Oaths of Strasbourg in the French and German languages. * 1009 First known… … Wikipedia
February — ist der Name folgender Personen: Basil February (1944–1968), südafrikanischer Freiheitskämpfer und Apartheidgegner Tommy February, Pseudonym der japanischen Musikerin Tomoko Kawase (* 1975) Siehe auch Februar … Deutsch Wikipedia
February — Feb ru*a*ry, n. [L. Februarius, orig., the month of expiation, because on the fifteenth of this month the great feast of expiation and purification was held, fr. februa, pl., the Roman festival or purification; akin to februare to purify, expiate … The Collaborative International Dictionary of English
February — late 14c., from L. februarius mensis month of purification, from februa purifications, expiatory rites (plural of februum), of unknown origin, said to be a Sabine word. The last month of the ancient (pre 450 B.C.E.) Roman calendar, so named in… … Etymology dictionary
February — should be pronounced with both rs fully articulated. It is now common, especially in AmE, to hear the word pronounced as if it were Febuary (and it is occasionally spelt that way too, which is a great deal worse) … Modern English usage
February — ► NOUN (pl. Februaries) ▪ the second month of the year. ORIGIN Latin februarius, from februa, the name of a purification feast held in this month … English terms dictionary
February — or Feb. or F. [feb′ro͞o er΄ē, feb′yo͞o er΄ē] n. pl. Februaries or Februarys [ME Februarie < L Februarius (mensis), orig. month of expiation < februa, Rom. festival of purification held Feb. 15, pl. of februum, means of purification, prob.… … English World dictionary
February — For other uses, see February (disambiguation). January February March April May June July August September October November December << … Wikipedia
February — Feb|ru|a|ry [ˈfebruəri, ˈfebjuri US ˈfebjueri] n [U and C] written abbreviation Feb. [Date: 1300 1400; : Latin; Origin: Februarius, from Februa, Roman religious ceremony in February to make things pure] the second month of the year, between… … Dictionary of contemporary English